The Seven Deadly Sins: Prisoners of the Sky

While searching for the rare sky fish, Meliodas and Hawk reach a palace suspended above the clouds. Its inhabitants are preparing a ceremony to protect their home from a beast that awakens once every 3,000 years, but the ritual is interrupted when the Six Knights of Black, an army of the Demon Clan, break the creature’s seal. With the people of the Sky Palace in danger, Meliodas and Hawk become involved in the fight to stop the unleashed threat.